In the menu that pop ups up in the task editor under “Scheduled” (with “Set start date” and Make repeating") there should be options “Schedule for tomorrow”, “Schedule for next week”, “Schedule for next month”. Maybe there should be even hotkeys for this.
This is particularly important when a task has been already scheduled and has become focused. In this case the focus must be removed as well. Doing this (re-scheduling and removing focus) manually or with an inline command “:s 7 :f 0” is a bit too cumbersome for such a frequent action.
Tasks tend to pile up in the focus list faster than you can complete them. Soon the focus list becomes so cluttered that you don’t want to look at it. To avoid this, I postpone the less important or less urgent tasks so that the focus list never grows beyond 5 to 7 items.